Understanding the Concepts

* Newton's Second Law of Motion: This law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass. Mathematically, this is expressed as:

* F = ma (where F is force, m is mass, and a is acceleration)

Calculation

1. Identify the knowns:

* Force (F) = 30 N

* Mass (m) = 90 kg

2. Solve for acceleration (a):

* a = F / m

* a = 30 N / 90 kg

* a = 0.33 m/s²

Answer: The astronaut experiences an acceleration of 0.33 m/s².